Rika Usui, with her model-like proportions, has her arms grabbed and artificially immobilized, and is fucked from behind, making her cum over and over again in an endless orgasm! She trembles like a newborn fawn, but her vagina is pounded with relentless thrusts, and even if she collapses, she continues to cum. As she is skewered by a dick, her hips arch back in pleasure, and her mind is taken over by an unprecedented sensation.